.van-nav-bar {
    background-color: #1989fa;
    /deep/ .van-icon {
      color: #fff;
    }
    /deep/ .van-nav-bar__text {
      color: #fff;
    }
    /deep/ .van-nav-bar__title {
      color: #fff;
    }
  }
  .backlogin{
    background-image: url("../../assets/xiafeng.jpg");
    background-repeat: no-repeat;
    height: 100%;
    background-size: 100%;
    box-sizing: border-box;
  }
  .van-form{
    margin: 0 auto;
    width: 80%;
    position: relative;
    top: 25%;
    box-sizing: border-box;
    .van-field{
      margin-top: 1rem;
      background-color: rgba(0, 0, 0, .2);
      border-radius: 1rem;
      border: 1px solid #1989fa;
      /deep/ .van-field__label{
        color: #fff;
      }
      /deep/ .van-field__control{
        color: #fff !important;
      }
    }
    .van-button{
      background-color: rgba(0, 0, 0, .2);
    }
  }